Abstract
Open quantum random walks in Attal et al. (Phys Lett A 376:1545–1548, 2012) are quantum generalizations of classical Markov chains. In this paper, we firstly consider a problem to construct a quantum Markov semigroup (QMS) $${\mathcal {T}}_{t}$$ directly from a continuous-time open quantum random walk (CTOQRW) developed in Pellegrini (J Stat Phys 154(3):838–865, 2014) and characterize its generator as well as its predual semigroup $${\mathcal {T}}_{*t}$$ . We show that this type of CTOQRWs brings about a large field of exploration for the behavior of open quantum system. Finally, we discuss some properties of this type of QMS constructed from CTOQRWs.
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